摘要：
su - root:just like login as root, then the shell is login shell,which mean it will expericene a login process,usually .bash_profile and .bashrc will be sourcedsu rootlike you open an interactive shell in root name,then only .bashrc will be sourced.su 和 sudo 的区别： 1.共同点：都是root用户的权限； 2.不同点：su仅... 阅读全文
